Case presentation A five-year-old child with no significant medical history was followed in a pediatric surgery department for a congenital subcutaneous swelling of the chest wall. The mass showed progressive enlargement over time. Clinical examination Apyretic, good general condition Poorly defined mass of the right chest wall, measuring 18 cm Renitent and mobile on palpation Positive transillumination (Figure 1) Figure 1 .
Clinical images showing right chest wall swelling Ultrasound Well-circumscribed cystic lesion of the subcutaneous tissue of the right chest wall Size: 16 × 9 cm No vascularization on Doppler Magnetic resonance imaging (Figure 2) Cystic mass with fluid content and smooth margins Dimensions: 154 × 82 mm Hyposignal on T1-weighted images Hypersignal on T2-weighted images Figure 2 . MRI of the chest Serum parameters : Normal Initial treatment and outcomes Five…
